28 lines
962 B
Crystal
28 lines
962 B
Crystal
require "./abstract_negotiator"
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# A `ANG::AbstractNegotiator` implementation to negotiate `ANG::AcceptLanguage` headers.
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class Athena::Negotiation::LanguageNegotiator < Athena::Negotiation::AbstractNegotiator
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protected def match(accept : ANG::AcceptLanguage, priority : ANG::AcceptLanguage, index : Int32) : ANG::AcceptMatch?
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accept_base = accept.language
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priority_base = priority.language
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accept_sub = accept.region
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priority_sub = priority.region
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base_equal = accept_base.downcase == priority_base.downcase
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sub_equal = accept_sub.try &.downcase == priority_sub.try &.downcase
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if ((accept_base == "*" || base_equal) && (accept_sub.nil? || sub_equal))
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score = 10 * (base_equal ? 1 : 0) + (sub_equal ? 1 : 0)
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return ANG::AcceptMatch.new accept.quality * priority.quality, score, index
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end
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nil
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end
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private def create_header(header : String) : ANG::BaseAccept
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ANG::AcceptLanguage.new header
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end
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end
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